戟柳檢視原始碼討論檢視歷史
戟柳 |
中文名:戟柳 學 名:Salix hastata 界:植物界 門:被子植物門 Angiospermae 綱:雙子葉植物綱 Dicotyledoneae 亞 綱:原始花被亞綱 Archichlamydeae 目:楊柳目 Salicales 科:楊柳科 Salicaceae 屬:柳屬 Salix 組:鹿蹄柳組 Sect. Hastatae 種:戟柳 |
戟柳(jǐ liǔ,學名 Salix hastata L.),灌木,高1-2米,稀較高。小枝淡黃色,栗色或灰黑色,初有短柔毛,後無毛或幾無毛。產新疆阿爾泰山區。 [1]
戟柳形態特徵
灌木,高1-2米,稀較高。小枝淡黃色,栗色或灰黑色,初有短柔毛,後無毛或幾無毛。
葉卵形,長圓形,或長圓狀倒卵形,長2-8厘米,寬1-4厘米,先端短漸尖,基部楔形至楔圓形,邊緣有細鋸齒,上面綠色,下面較淡;葉柄長2-5毫米,常短於托葉;托葉斜卵形或半心形,邊緣有鋸齒。
花與葉同時開放,花序長2-4厘米;果序伸長,花序梗具小葉片和絨毛;
苞片長圓形,淡褐色,密被灰白色長柔毛;腺體1,腹生;雄蕊2,花絲離生,稀基部合生,無毛,花葯淡黃色;子房卵形,無毛,有短柄,花柱明顯,有時2裂,柱頭短,2裂。
蒴果綠色或褐色,無毛。花期5-6月,果期6-7月。 [2]
Salix hastata L. Sp. Pl. 1017. 1753; Nas. in Kom. Fl. URSS, 5: 116. 1936; Poljak. in Fl. Kazakhst. 3: 28. 1960.
Shrubs to 2 m tall. Branchlets yellowish, chestnut colored, or grayish black, at first pubescent, glabrescent or subglabrous. Stipules obliquely ovate or semicordate, margin serrate; petiole 2-5 mm, usually shorter than stipules; leaf blade ovate, oblong, or oblong-obovate, 2-8 × 1-4 cm, abaxially greenish, adaxially green, base cuneate to cuneate-rounded, margin serrulate, apex shortly acuminate. Flowering coetaneous. Catkins 2-4 cm; peduncle tomentose, with leaflets; bracts brownish, oblong, densely grayish white villous. Male flower: stamens 2; filaments distinct, rarely united at base, glabrous; anthers yellowish. Fruiting catkin elongated. Female flower: ovary ovoid, glabrous, shortly stipitate; style conspicuous, sometimes 2-cleft; stigma short, 2-lobed. Capsule green or brown, glabrous. Fl. May-Jun, fr. Jun-Jul. 2n = 35, 37-39.
戟柳生長環境
生長於海拔1000-1800米的山區河岸邊。
戟柳分布範圍
產於新疆阿爾泰山區(青河、富蘊、福海、阿爾泰,布爾津等地)。